In a small bowl, dissolve the corn starch In the orange juice and set aside. 

In a medium saucepan, combine the berries, sugar and orange zest. Cook over medium high heat and bring to a boil stirring often until the sugar dissolves.

Add the cornstarch mixture and cook for 1 more minute (overcooking will make the fruit disintegrate).

Let it cool to room temperature and enjoy over pancakes, waffles, muffins, or even in parfaits.